[TR] TR4A plug check

[Geo Hahn]

John -

I'm no expert but I think you're looking for something unique to each
cylinder - I would start with a compression check and then look at valve
clearances.

Probably best to clean the plugs and do a 'plug cut' or at least drive hard
with minimal idling to get a fair comparison.

Geo

On Fri, Nov 3, 2017 at 8:15 PM, John Deluca <john-marie at sbcglobal.net>
wrote:

> List,
> Have 1500 miles on rebuilt engine and Stromberg carbs.  Was running good.
> Recently seemed to have lost a little power.  Pulled the plugs.  Looking
> for some clue as to the reason for what l found... #1 plug was black and
> slightly wet.  #2 looked like the mixture was good.  #3 was black but dry.
> #4 looked a little lean.  Last pulled the plugs at about 1000 miles.  They
> looked normal.  Of course, I'm trying to figure out why plugs on the same
> carb are so different.  Did not get them mixed up.  Appreciate any ideas.
> John DeLuca
>
> Sent from my iPad
>
>
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